/
dom.go
231 lines (190 loc) · 5.73 KB
/
dom.go
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package chromy
import (
"context"
"sync"
"github.com/mafredri/cdp"
"github.com/mafredri/cdp/protocol/dom"
)
func newDOM(ctx context.Context, cli *cdp.Client) (*DOM, error) {
err := cli.DOM.Enable(ctx)
if err != nil {
return nil, err
}
d := &DOM{
DOM: cli.DOM,
ErrTracer: nonErrTracer,
nodes: make(map[dom.NodeID]*Node),
nodeModifiers: make(map[dom.NodeID]nodeModifiers),
}
defer func() {
if err != nil {
d.close()
}
}()
d.events.SetChildNodesClient, err = cli.DOM.SetChildNodes(ctx)
if err != nil {
return nil, err
}
d.events.clients = append(d.events.clients, d.events.SetChildNodesClient)
d.events.DocumentUpdatedClient, err = cli.DOM.DocumentUpdated(ctx)
if err != nil {
return nil, err
}
d.events.clients = append(d.events.clients, d.events.DocumentUpdatedClient)
d.events.AttributeRemovedClient, err = cli.DOM.AttributeRemoved(ctx)
if err != nil {
return nil, err
}
d.events.clients = append(d.events.clients, d.events.AttributeRemovedClient)
d.events.AttributeModifiedClient, err = cli.DOM.AttributeModified(ctx)
if err != nil {
return nil, err
}
d.events.clients = append(d.events.clients, d.events.AttributeModifiedClient)
d.events.ChildNodeRemovedClient, err = cli.DOM.ChildNodeRemoved(ctx)
if err != nil {
return nil, err
}
d.events.clients = append(d.events.clients, d.events.ChildNodeRemovedClient)
d.events.ShadowRootPoppedClient, err = cli.DOM.ShadowRootPopped(ctx)
if err != nil {
return nil, err
}
d.events.clients = append(d.events.clients, d.events.ShadowRootPoppedClient)
d.events.ShadowRootPushedClient, err = cli.DOM.ShadowRootPushed(ctx)
if err != nil {
return nil, err
}
d.events.clients = append(d.events.clients, d.events.ShadowRootPushedClient)
d.events.ChildNodeInsertedClient, err = cli.DOM.ChildNodeInserted(ctx)
if err != nil {
return nil, err
}
d.events.clients = append(d.events.clients, d.events.ChildNodeInsertedClient)
d.events.PseudoElementAddedClient, err = cli.DOM.PseudoElementAdded(ctx)
if err != nil {
return nil, err
}
d.events.clients = append(d.events.clients, d.events.PseudoElementAddedClient)
d.events.PseudoElementRemovedClient, err = cli.DOM.PseudoElementRemoved(ctx)
if err != nil {
return nil, err
}
d.events.clients = append(d.events.clients, d.events.PseudoElementRemovedClient)
d.events.CharacterDataModifiedClient, err = cli.DOM.CharacterDataModified(ctx)
if err != nil {
return nil, err
}
d.events.clients = append(d.events.clients, d.events.CharacterDataModifiedClient)
d.events.ChildNodeCountUpdatedClient, err = cli.DOM.ChildNodeCountUpdated(ctx)
if err != nil {
return nil, err
}
d.events.clients = append(d.events.clients, d.events.ChildNodeCountUpdatedClient)
d.events.InlineStyleInvalidatedClient, err = cli.DOM.InlineStyleInvalidated(ctx)
if err != nil {
return nil, err
}
d.events.clients = append(d.events.clients, d.events.InlineStyleInvalidatedClient)
d.events.DistributedNodesUpdatedClient, err = cli.DOM.DistributedNodesUpdated(ctx)
if err != nil {
return nil, err
}
d.events.clients = append(d.events.clients, d.events.DistributedNodesUpdatedClient)
return d, nil
}
type DOM struct {
cdp.DOM
ErrTracer
events struct {
dom.SetChildNodesClient
dom.DocumentUpdatedClient
dom.AttributeRemovedClient
dom.AttributeModifiedClient
dom.ChildNodeRemovedClient
dom.ShadowRootPoppedClient
dom.ShadowRootPushedClient
dom.ChildNodeInsertedClient
dom.PseudoElementAddedClient
dom.PseudoElementRemovedClient
dom.CharacterDataModifiedClient
dom.ChildNodeCountUpdatedClient
dom.InlineStyleInvalidatedClient
dom.DistributedNodesUpdatedClient
clients []closer
}
mu sync.RWMutex
root *Node
nodes map[dom.NodeID]*Node
nodeModifiers map[dom.NodeID]nodeModifiers
}
func (d *DOM) loop(ctx context.Context) {
defer d.close()
for {
select {
case <-ctx.Done():
return
case <-d.events.SetChildNodesClient.Ready():
if err := d.handleSetChildNodes(); err != nil {
d.Trace(err)
}
case <-d.events.DocumentUpdatedClient.Ready():
if err := d.handleDocumentUpdated(); err != nil {
d.Trace(err)
}
case <-d.events.AttributeRemovedClient.Ready():
if err := d.handleAttributeRemoved(); err != nil {
d.Trace(err)
}
case <-d.events.AttributeModifiedClient.Ready():
if err := d.handleAttributeModified(); err != nil {
d.Trace(err)
}
case <-d.events.ChildNodeRemovedClient.Ready():
if err := d.handleChildNodeRemoved(); err != nil {
d.Trace(err)
}
case <-d.events.ShadowRootPoppedClient.Ready():
if err := d.handleShadowRootPopped(); err != nil {
d.Trace(err)
}
case <-d.events.ShadowRootPushedClient.Ready():
if err := d.handleShadowRootPushed(); err != nil {
d.Trace(err)
}
case <-d.events.ChildNodeInsertedClient.Ready():
if err := d.handleChildNodeInserted(); err != nil {
d.Trace(err)
}
case <-d.events.PseudoElementAddedClient.Ready():
if err := d.handlePseudoElementAdded(); err != nil {
d.Trace(err)
}
case <-d.events.PseudoElementRemovedClient.Ready():
if err := d.handlePseudoElementRemoved(); err != nil {
d.Trace(err)
}
case <-d.events.CharacterDataModifiedClient.Ready():
if err := d.handleCharacterDataModified(); err != nil {
d.Trace(err)
}
case <-d.events.ChildNodeCountUpdatedClient.Ready():
if err := d.handleChildNodeCountUpdated(); err != nil {
d.Trace(err)
}
case <-d.events.InlineStyleInvalidatedClient.Ready():
if err := d.handleInlineStyleInvalidated(); err != nil {
d.Trace(err)
}
case <-d.events.DistributedNodesUpdatedClient.Ready():
if err := d.handleDistributedNodesUpdated(); err != nil {
d.Trace(err)
}
}
}
}
func (d *DOM) close() {
for _, c := range d.events.clients {
c.Close()
}
}